Semi-automatic clamp device

ABSTRACT

A semi-automatic clamp device includes a tightening mechanism and a connecting rod mechanism. The lowest side of the device is a first workbench having a baffle and supports which connect a passive connecting rod through auxiliary connecting rods. An end of the passive connecting rod connects the baffle through a first spring, and another end connects an active rocker connecting downward on the supports, with another end of the active rocker touching a slide block which connects a slide wheel through a second connecting rod. On a connection point between the second connecting rod and the slide block, the slide block connects tie plates through the first connecting rod transfixing a second workbench having a support bracket. The tie plates connect the support bracket through second springs. This clamp device realizes semi-automatic clamping, improves production efficiency significantly, clamps more securely, and decreases an error in drawing a detection conclusion effectively.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a Continuation of co-pending International Application No. PCT/CN2006/001207, filed on Jun. 5, 2006, and for which priority is claimed under 35 U.S.C. § 120; and this application claims priority of Application No. 200620059356.3 filed in China on May 24, 2006 under 35 U.S.C. § 119; the entire contents of all of which are hereby incorporated by reference.

BACKGROUND OF THE INVENTION

(a) Field of the Invention

The present invention relates to a clamp device, and more particularly to a clamp device by which a semi-automatic tightening function is realized through the principle of lever.

(b) Description of the Prior Art

As continuous development of productivity, efficiency becomes a target pursued by more and more enterprises. For an existing clamp device, a material to be authenticated is fixed manually on the clamp for detection, which is provided with following explicit shortcomings. One of the shortcomings is that the working efficiency is low and a streamline operation is unable to be realized. The other shortcoming is that as the tightening position is not fixed, a result of detection will be affected. In a mean time, the existing clamp device is also provided with a shortcoming that the material to be authenticated cannot be tightened securely. Accordingly, a further improvement is needed for the existing technology.

SUMMARY OF THE INVENTION

The primary object of present invention is to provide a clamp device by which a material to be authenticated can be tightened semi-automatically.

Accordingly, the present invention is a semi-automatic clamp device which is composed of a tightening mechanism and a connecting rod mechanism, wherein the tightening mechanism is placed on a second workbench, two ends of a support bracket are connected with tie plates, and another end of each tie plate is again connected with the support bracket through a second spring. The aforementioned tightening mechanism is connected with a slide block through a first connecting rod, a second connecting rod connects the slide block with a slide wheel through an intersection between the first connecting rod and the slide block, a lower side of the slide block is in touch with an end of an active rocker, another end of the active rocker is connected with a passive connecting rod, a middle part of an active connecting rod is connected with fixing supports, a middle part of the passive connecting rod is connected with the fixing supports through auxiliary connecting rods, another end of the passive connecting rod is connected with a baffle through a first spring, and the baffle and the support bracket are fixed respectively on a first workbench.

The clamp device utilizing the aforementioned technology is able to realize the semi-automation of the clamp device, to largely increase production efficiency, to clamp more securely, and to effectively decrease an error in drawing a conclusion of detection.

To enable a further understanding of the said objectives and the technological methods of the invention herein, the brief description of the drawings below is followed by the detailed description of the preferred embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a schematic view of a working state that tie plates are opened of the present invention.

FIG. 2 shows a schematic view of a working state that tie plates are tightening of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring to FIG. 1, a semi-automatic clamp device comprises a tightening mechanism and a connecting rod mechanism, wherein the lowest side of the device is a first workbench 1 on which is provided orderly with a baffle 2 and a plurality of fixing supports 4. Each fixing support 4 is connected with a passive connecting rod 6 through a first auxiliary connecting rod 5A and a second auxiliary connecting rod 5B, respectively. An end of the passive connecting rod 6 is connected with the baffle 2 through a first spring 3. Another end of the passive connecting rod 6 is connected with an active rocker 7 which is connected downward on the fixing supports 4. Another end of the active rocker 7 is in touch with a slide block 9 which is again connected with a slide wheel 10 through a second connecting rod 8. On a connection point between the second connecting rod 8 and the slide block 9, the slide block 9 is connected with the tightening mechanism through a first connecting rod 12 which transfixes a second workbench 11. The second workbench 11 is provided with a support bracket 15, and tie plates 14 are connected with the support bracket 15 through second springs 13.

When the slide block 8 is at a right end, the first spring 3 is stretched. At this time, due to that the active rocker 7 is supported at a lower side of the slide block 9, the second springs 13 will be stretched by pulling of the first connecting rod 12 and the second connecting rod 8, thereby opening the tie plates 14. Therefore, at this time, a PCD (Printed Circuit Design) board to be detected can be put in or taken out. After placing the PCD board, the slide block 9 is pushed leftward to drive the active rocker 7 to swing leftward, which will drive the passive connecting rod 6 downward by compression of the first spring 3. At this time, the slide block 9 loses support from the active rocker 7. As the second springs 13 are compressed, the tie plates 14 will press down tightly, and then the PCD board can be detected.

It is of course to be understood that the embodiments described herein is merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims. 

1. A semi-automatic clamp device comprising a tightening mechanism and a connecting rod mechanism, wherein the tightening mechanism is placed on a second workbench, two ends of a support bracket are connected with tie plates, another end of each tie plate is connected again with the support bracket through a second spring, the tightening mechanism is connected with a slide block through a first connecting rod, a second connecting rod connects the slide block and a slide wheel through an intersection between a first connecting rod and the slide block, a lower side of the slide block is in touch with an end of an active rocker, another end of the active rocker is connected with a passive connecting rod, a middle part of the active connecting rod is connected with fixing supports, a middle part of the passive connecting rod is connected with the fixing supports through auxiliary connecting rods, another end of the passive connecting rod is connected with a baffle through a first spring, and the baffle and the supports are fixed respectively on a first workbench.
 2. The semi-automatic clamp device according to claim 1, wherein the connecting rod mechanism is connected with the tightening mechanism through the first connecting rod.
 3. The semi-automatic clamp device according to claim 1, wherein a lower side of the first connecting rod is connecting with the slide block which is fixed at an end of the second workbench.
 4. The semi-automatic clamp device according to claim 1, wherein the second connecting rod connects an end of the slide block and the slide wheel at a lower side of the second workbench through an intersection between the slide block and the first connecting rod, another end of the slide block and close to a lower side is provided with a slant surface, whereas at another end of the second workbench, the first connecting rod is directly connected with the second connecting rod and drives the slide wheel.
 5. The semi-automatic clamp device according to claim 1, wherein a lower side of the slide block is in touch with the active rocker, and a middle part of the active rocker is connected with the fixing supports.
 6. The semi-automatic clamp device according to claim 1, wherein an end of the passive connecting rod is connected with the active rocker, another end is connected with the baffle through the first spring, and the middle part is connected with the fixing supports through the auxiliary connecting rods.
 7. The semi-automatic clamp device according to claim 1, wherein the baffle and the fixing supports are fixed respectively on the first workbench.
 8. The semi-automatic clamp device according to claim 1, wherein two ends of the support bracket are connected with the tie plates, whereas, another end of each tie plate is again connected with the support bracket through the second spring. 